Langer's Sudoku Assistant

       
4     6
       
3
       
4     6
       
9
2
1
8
7
5
7
1
2
5
4
8
9
6
3
5
8
9
7
6
3
2
1
4
1
6
2
7
8
9
      3
4      
       
5
      3
4      
       
8
3
4
2
5
1
6
9
7
9
7
5
4
3
6
1
2
8
      3
      6
       
4
      3
      6
       
5
1
7
2
9
8
1
2
9
4
8
6
3
7
5
8
5
7
3
9
2
6
4
1

 

Start Over

Take any Sudoku puzzle you are having trouble with -- or any one at all -- and enter the initial values. With each entry the proscribed options are eliminated for you

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